The entire mechanical system of the computer pattern machine includes the upper and lower shafts, main shaft, needle bar, pick-up mechanism, cutting mechanism, hooking mechanism, feeding mechanism, and material pressing mechanism, with approximately 600-700 parts. The entire mechanical system is complex in structure and highly precise, demanding a high standard of assembly quality.

The working principle of the computerized pattern setter is as follows: The crank and connecting rod mechanism installed on the main shaft transfers the fabric to the needle. The needle pierces the fabric downward, threading the weft through. The cutting mechanism, in coordination with the control system, completes the automatic cutting function. The pressure mechanism ensures the friction force of the feeding process, while the feeding mechanism moves the fabric. As the needle rises from the bottom point, the weft forms a loop due to obstruction. During the upward movement, the hooking mechanism engages the loop, separating it front and back, creating a woven knot with the底线. The picking rod pulls out the weft, slowly ascending to a higher position, then begins to descend slowly. At this point, the weft is relaxed, and the底线 is tensioned, dragging the woven knot downward until it intertwines with the fabric, completing the stitch.